Question

3.
Suppose that 1 litre water is heated for a certain time to increase its temperature by 2°C if 2 liters
water is heated for same time then it will raise its temperature by
[ 16.
1)
°C
2) 1°C
3) 2°C
4)
DEC​

Answer 1

Answer:

3rd is the answer I hope it helps you

Answer 2

We know that: -

• Q = mS∆T
• ⇒ ∆T = Q/ms
• ⇒∆T is inversely proportional to the heat supplied.
• ⇒If the mass is greater than we get a change in temperature for the same amount of heat supplied.
• Given the change in temperature when 1l(m1) of water is heated for a certain time = ∆T1 = 2oC
• Let the change in temperature when 2l(m2) of water is heated for a certain time be ∆T2
• Heat supplies and specific heat is constant for both the cases.
• ∴ ∆T1/∆T2 = m2/m1
• ⇒∆T2 = 1 oC
• Hence, if 2l of water is heated for the same time then 1 of temperature rise will take place.