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The rate of change of energy is a measure of how quickly the energy of a system is increasing or decreasing over time. It can be calculated by dividing the change in energy by the change in time. This rate can help in understanding processes involving energy transfer or transformation.
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Why is there a change in rate of energy exchange as time passes?
The change in the rate of energy exchange over time can be influenced by various factors such as changes in temperature, system boundaries, and the dynamics of the system itself. As the system evolves, its internal energy distribution and external conditions may also change, leading to fluctuations in the rate of energy exchange.
Is acceleration the rate of change of the rate of change of position?
no its speed that definds the rate change of position
A measure of the rate at which work is done or energy is transformed?
Power is the rate of change of work with respect to time. It has units of [kg*m^2/s^3].
What statements about activation energy is correct?
Activation energy is the minimum amount of energy required for a chemical reaction to occur. An increase in activation energy leads to a decrease in reaction rate. Catalysts lower the activation energy required for a reaction to proceed, increasing the reaction rate. Activation energy does not affect the overall energy change of a reaction, only the speed at which it occurs.
Which physical quantity is measured by rate of change of momentum?
Force and rate of change of momentum (both vector quantities) are cause (force) and effect (rate of change of momentum). Newton's second law of motion equates the two quantities, but they are not identical. There is a distinction in that forces derive from interactions between objects (gravitational, electrical, magnetic...) while momentum changes in response to the net force acting on an object or system.
Does your heart rate change your energy levels?
Yes, your heart rate will change your energy levels in many different ways. If you are working out you will have a higher heart rate and this will cause you to be tired after you work out.
Why is there a change in rate of energy exchange as time passes?
The change in the rate of energy exchange over time can be influenced by various factors such as changes in temperature, system boundaries, and the dynamics of the system itself. As the system evolves, its internal energy distribution and external conditions may also change, leading to fluctuations in the rate of energy exchange.
How is the heart rate of a person running different from their resting heart rate why is this change necessary?
Because your heart needs to burn energy, the more energy you burn the faster your heart rate
How are electrical power and electrical energy related?
Power is always the time-rate of energy, i.e. the rate of change (or transfer) of energy with respect to time.If Energy is measured in Joules, then one Joule being transferred in one second is equal to one Watt of power.Electrical power is the time rate of change of electrical energy, P=dE/dt.Power = energy / timeIt usually referst to some type of energy transfer. In SI units:Watts = joules / second
Does adding heat energy affect the rate of reaction in a chemical change?
it depends on what chemicals used
Is another way to control the rate of a reaction to change the activation energy needed?
Adding a catalyst.
Is acceleration the rate of change of the rate of change of position?
no its speed that definds the rate change of position
What is the expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas, denoted as (du/dv)t?
The expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas is denoted as (du/dv)t.
A measure of the rate at which work is done or energy is transformed?
Power is the rate of change of work with respect to time. It has units of [kg*m^2/s^3].
Is it true that another way to control the rate of a reaction is to change the activation energy needed?
Yes, altering the activation energy required for a reaction can impact the reaction rate. Lowering the activation energy makes it easier for the reaction to occur, speeding up the rate, while increasing the activation energy slows down the rate. This is often achieved by using catalysts to provide an alternative reaction pathway with lower activation energy.
What is the percent rate of change?
The rate of change is the change divided by the original value. This answer, converted to a percentage is the percentage rate of change.
What is the rate at which the energy is transferred?
The rate at which energy is transferred is called POWER
