Find the quantity of heat required to raise the temperature of 2 kg water 45°C. 254 2 4 41876 (Ans. from 25°C to 4 X 10ºcal)
step process plz.....
Share
Find the quantity of heat required to raise the temperature of 2 kg water 45°C. 254 2 4 41876 (Ans. from 25°C to 4 X 10ºcal)
step process plz.....
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
The amount of heat required to raise the temperature of 2 kg of water from 25°C to 45°C is 4 x 10^cal.
This can be determined using the specific heat equation, which states that "The amount of heat required to raise the temperature of an object is equal to the mass of the object multiplied by the change in temperature and the specific heat of the object".
In this case,
The mass of the water is 2 kg, the change in temperature is 20°C (45°C - 25°C), and the specific heat of water is 4.18 kJ/kg·K. To calculate the quantity of heat, we must multiply these three values together:
2 kg × 20°C × 4.18 kJ/kg·K = 16.72 kJ = 4 x 10^cal
Therefore, the amount of heat required to raise the temperature of 2 kg of water from 25°C to 45°C is 4 x 10^cal.