Question

how much heat is required to raise the temperature of 5g of mercury from 20*C to 200*C?
(specific heat capacity of mercury =0.138 x 10^3 J/kg*C)

Answer 1

Hola User___________________

Here is Your Answer...!!!
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↪⭐Actually welcome to the concept of the THERMODYNAMICS

↪⭐KINETIC THEORY OF GASES

↪⭐Q = m s delta T

↪⭐Since here we are given thAt ..

↪M = 5g = 0.005 kg , s = 138 J / kg.°C , ♢T = 180°C

↪so after applying formula we get as ...

↪⭐Q = 124.2 kJ
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Answer 2

As we know heat required = Ms∆T

M= 5g = 5/1000 kg = 0.005 kg

s = 0.138 × 10^3 J/kg C

= 138 J/kg C

Note s is in C

so take temperature in C

∆T = 200 -20= 180 C

So heat required = 0.005 × 138 × 180

= 0.69× 180

= 124.2 J

✌✌✌Dr.Dhruv✌✌✌✌✌✌