Question

how much heat is necessary to warm 500 gram of water from 20 degree Celsius to 65 degree Celsius ​

Answer 1

Answer:

65 degree

because 500 gram of water needs 65 degrees celsius to warm like the do in the gas and kitchen

Answer 2

Given :-

Mass of water = m = 500 g

Specific heat = c = 4.179 J °C-¹ g-¹

∆T = (65-20) °C = 45 °C

As we know that,

Q = mc∆T

Q = 500 × 4.179 × 45

Q = 94027.5 J

$\bf{Q\:=\:94.027\:KJ}$

Hence,

Heat required = Q = 94.027 KJ