1. A car's engine block is made of (a) Iron, (b) Copper, (c) Tungsten and has a mass of 210 kg.
How much heat is absorbed by the engine when its temperature is raised from
(a) 10° C to 91°C? (b) 13° C to 97° C? (c) 14° C to 98° C?

i) Heat required to raise temperature of iron is

ii) Heat require to raise temperature of copper is

iii) Heat require to raise temperature of tungsten is

Explanation:

As we know that specific heat capacity of

i) Iron is 444 J/kg C

so heat required to raise its temperature is given as

ii) Copper specific heat is 385 J/kg C

so heat required to raise its temperature is given as

iii) Tungsten specific heat capacity is given as 134 J/kg C

a=d/t

a="triangle"v/t

explanation:

a = acceleration