Question

plz help me with this​

Answer 1

Answer:

B)1.02kcal

Have a good Night

-Srijan

Answer 2

Answer:

This is a question of Thermodynamics.

We are given with 100 g of kerosene. We are asked how much heat is required to change the temperature of kerosene from 10°C to 30°C.

Also it is given that Specific Heat Capacity is 0.51 Kcal/Kg.°C

According to Thermodynamics,

⇒ Q = m.C.ΔT

• Q = Heat Energy
• m = Mass of the substance
• C = Specific Heat Capacity of the substance
• ΔT Change in Temp

Now since Specific Heat Capacity has °C, we will consider ΔT also in °C.

Substituting the given values we get,

⇒ Q = 0.1 Kg × 0.51 Kcal/Kg.°C × ( 30° - 10° )°C

⇒ Q = 1.02 Kcal

Hence Option (b) is the right answer.