Question

How much heat will be needed to raise the temperature of 1.5 kg of water from 15 C to 45 C ? Give the answer in calories as will as in Joule​

Answer 1

Given = mass of water = 1.5 kg = 1500gm. heat required for a temperature change = ? heat required for temperature change = mass of water (gm) change in temperature (°C) cal. = 45000×4.18 J = 188100 J.

Answer 2

Given = mass of water = 1.5 kg = 1500gm. heat required for a temperature change = ? heat required for temperature change = mass of water (gm) change in temperature (°C) cal. = 45000×4.18 J = 188100 J.