53.8k views
4 votes
Question. 1 How much heat is necessary to warm 500g of water from 20°C to 65°C?​

User Jalle
by
8.2k points

1 Answer

3 votes

Answer:

The heat necessary to warm 500g of water from 20°C to 65°C is 37,620 J.

Step-by-step explanation:

GIVEN: m = 500 gm, T₂ = 65°C AND T₁ = 20°C, we know that c (specific heat capacity) = 4180

TO FIND: The heat necessary to warm 500g of water from 20°C to 65°C.

SOLUTION:

By using the heat equation,

Q=m c ΔT

ΔT = T₂ - T1

ΔT = 65 - 20 = 45°C

In this case,

Q = 0.2 × 4180 × 45 = 37,620 J

User Paul Fitzgerald
by
8.4k points