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On a pressure map what is a line that connects two places with the same atmospheric pressure called?
An isobar is a line connecting points of equal atmospheric pressure on a pressure map.
Does an increase in humidity correlate with an increase in air pressure?
No, an increase in humidity does not necessarily correlate with an increase in air pressure. Humidity and air pressure are two separate atmospheric conditions that can change independently of each other.
Can two isobars drawn on a surface weather map ever intersect?
No, isobars represent areas of equal atmospheric pressure, so two isobars should never intersect on a surface weather map. If two isobars were to intersect, it would imply that the same location on the map has two different atmospheric pressure values simultaneously, which is not physically possible.
What is the pressure of the sample of gas trapped in the open-tube mercury manometer shown below if atmospheric pressure is 736 mmHg and h equals 9.2 cm?
The pressure of the gas is equal to the atmospheric pressure plus the difference in the heights of the mercury levels. To convert 736 mmHg to cm, divide by 1.333. Then calculate the difference in heights: 9.2 cm. Add the two values together to find the pressure of the gas.
Which two factors affect the temperature that rocks melt at?
The two main factors that affect the temperature at which rocks melt are the composition of the rock and the pressure acting on it. Different minerals have different melting points, so the composition of the rock will determine its melting temperature. Additionally, pressure can increase or decrease the melting temperature of rocks, with higher pressure generally increasing melting temperature and lower pressure decreasing it.
What two factors affect the boiling point of water apex?
The two main factors that affect the boiling point of water are the atmospheric pressure and the presence of impurities in the water. As atmospheric pressure increases, the boiling point of water also increases. Impurities in water, such as salt, can raise the boiling point of water due to the change in the composition of the solution.
On a pressure map what is a line that connects two places with the same atmospheric pressure called?
An isobar is a line connecting points of equal atmospheric pressure on a pressure map.
What are two main causes of large scale atmospheric circulation?
Atmospheric pressure changes and gravity.
What are two factors that cause atmospheric pressure to change?
Two key factors that cause atmospheric pressure to change are altitude and temperature. As altitude increases, atmospheric pressure decreases because there is less air above exerting force. Additionally, temperature affects pressure; warmer air expands and becomes less dense, leading to lower pressure, while cooler air contracts and increases density, resulting in higher pressure. These variations contribute to weather patterns and atmospheric dynamics.
What are the 2 ways to express the atmospheric pressure at sea level?
The two ways to express the atmospheric pressure at sea level are in millimeters of mercury (mmHg) or in hectopascals (hPa).
What two significant atmospheric charactaristics change with increasing altitude?
pressure and temperature.
Why does water boil when the vapor pressure is equal to atmospheric pressure?
Water boils when its vapor pressure equals atmospheric pressure because at this point the molecules in the liquid have enough energy to escape into the gas phase, creating bubbles and causing the liquid to boil. This balance of vapor pressure and atmospheric pressure allows the liquid to change into a gas at a constant temperature.
What is the difference between gauge pressure and absolute pressure, and how can one accurately gauge pressure in a system using these two measurements?
Gauge pressure is the pressure measured relative to atmospheric pressure, while absolute pressure includes atmospheric pressure as a reference point. To accurately gauge pressure in a system, one can use a gauge that measures gauge pressure and then add the atmospheric pressure to get the absolute pressure. This allows for a more precise measurement of the pressure within the system.
Why height is always measured at sea level?
atmospheric pressure ... the diff. in the two pressure in which it will find the height from the level of sea
What two forces you act upon and use when you are standing on earth?
Gravity and atmospheric pressure.
What are two methods for measuring air pressure?
Two methods for measuring air pressure are using a barometer, which measures atmospheric pressure, and using a manometer, which measures the pressure of gases and vapors in a closed system.
What happens if intrapleural pressure equal atmospheric pressure?
The intrapleual pressure is always below atmospheric pressure. Because of the connection between the two plurae which is similar to two wet pieces of paper adhered to each other, the negative intrapleural pressure helps to expand the lungs during ventilation. If intrapleural pressure was equal to atmospheric pressure, the lungs would collapse. Such a case is seen in a penetration of the thoracic cavity (pneumothorax), where a puncture in the thoracic cavity, and subsequently the plurae, will result in a collapsed lung.
