Milk contains bacteria that cause tuberculosis and other diseases. When milk is heated to 85c, all of the tuberculosis bacteria and disease causing bacteria are killed, and most of the bacteria are killed that causes milk to spoil. So, it makes milk safe to drink. The process is called Pasteurization. That technique greatly reduced tuberculosis in the United States making it much lower than in places where people use raw milk.
The specific heat capacity of milk is around 3.93 J/g°C.
The amount of heat required can be calculated using the formula Q = mcΔT, where Q is the heat energy, m is the mass of water (250 grams), c is the specific heat capacity of water (4.18 J/g°C), and ΔT is the change in temperature (85°C - 10°C = 75°C). Plugging in the values, the heat required is approximately 78,750 Joules or 78.75 kJ.
c = 18u + 85 c - 85 = 18u (c - 85)/18 = u
Milk that has been heat treated to destroy any pathogenic (harmful) bacteria as well as some of the spoilage bacteria. This heat treatment is a minimum of 72°C for 15 seconds or equivalents thereof such as 63°C for 30 minutes.
To find the final temperature of the mixture, we can use the principle of conservation of energy, where the heat lost by the hot water equals the heat gained by the cold water. Since both masses are equal (85 g) and using the specific heat capacity of water, the final temperature ( T_f ) can be calculated as follows: [ T_f = \frac{(m_1 \cdot T_1) + (m_2 \cdot T_2)}{m_1 + m_2} ] [ T_f = \frac{(85 , \text{g} \cdot 80 , \text{C}) + (85 , \text{g} \cdot 40 , \text{C})}{85 , \text{g} + 85 , \text{g}} = \frac{6800 + 3400}{170} = \frac{10200}{170} = 60 , \text{C} ] Thus, the final temperature of the mixture is 60 °C.
The answer will depend on the thermal capacity or heat capacity of the metal.
To calculate the heat absorbed by water, we use the formula ( Q = mc\Delta T ), where ( Q ) is the heat absorbed, ( m ) is the mass of the water, ( c ) is the specific heat capacity of water (approximately 4.18 J/g°C), and ( \Delta T ) is the change in temperature. For 250 g of water heated from 10°C to 85°C, ( \Delta T = 85°C - 10°C = 75°C ). Thus, ( Q = 250 , \text{g} \times 4.18 , \text{J/g°C} \times 75 , \text{°C} = 78,375 , \text{J} ).
what percentage of a mike carton comes from paper A. 85% B. 40% C. 20% D. 92%
Milk is pasteurised at 63°C for 30 minutes (batch pasteurisation) or at 72°C for 15 seconds (High Temperature Short Time [HTST]). These heat treatments are equally effective.
85°F is equivalent to 29.4°C in Celsius.
It saved millions from terrible diseases like Yellow Fever, Plauge, and Rabies.Louis Pasteur also invented Pasteurization, which is when you heat milk at a certain tempature(60 degrees C- 65 degrees C)This kills the bactiria in the milk,andeother beverages.
C=pi * d C=pi * 85 pi is approximately 3.141592 85 * 3.14592=267.4032