Question

some heat is given to 120 gram water and its temperature rises by 10 Kelvin calculate heat given out by water (2)specific heat capacity of oil when the same heat is given to 60 gram of an oil and its temperature rises by 40 Kelvin

answer-1)5040J (2)2.1

Answer 1

To calculate the energy required to raise the temperature of any given substance, here's what you require:

The mass of the material,

m

The temperature change that occurs,

Δ

T

The specific heat capacity of the material,

c

(which you can look up). This is the amount of heat required to raise 1 gram of that substance by 1°C.

Here is a source of values of

c

for different substances:

Once you have all that, this is the equation:

Q

=

m

×

c

×

Δ

T

(

Q

is usually used to symbolize that heat required in a case like this.)

For water, the value of

c

is

4.186

J

g

°

C

So,

Q

=

750

×

4.186

×

85

=

266

858

J

=

266.858

k

J