2000 J of energy is needed to heat 1 kg of paraffin through $1^{\circ} C$ . So How much energy is needed to heat 10 kg of paraffin through $2^{\circ} C$ ?
4000 J
10,000 J
20,000 J
40,000 J

Question

2000 J of energy is needed to heat 1 kg of paraffin through 1-circ-C- So How much energy is needed to heat 10 kg of paraffin through 2-circ-C -4000 J10-000 J20-000 J40-000 J

Toppr Admin · Accepted Answer

W-mc-x3B8-2000-1000-c-1-c-2 J-goCwe get value of cHence for 10kg through 2oC-W-10000-2-2-40000J

2000 J of energy is needed to heat 1 kg of paraffin through 1∘C. So How much energy is needed to heat 10 kg of paraffin through 2∘C ?4000 J10,000 J20,000 J40,000 J

W=mcθ2000=(1000)c(1)c=2 J/goCwe get value of cHence for 10kg through 2oC,W=(10000)(2)(2)=40000J

2000 J of energy is needed to heat 1 kg of paraffin through $1^{\circ} C$ . So How much energy is needed to heat 10 kg of paraffin through $2^{\circ} C$ ?
4000 J
10,000 J
20,000 J
40,000 J

$W = m c θ$
$2000 = (1000) c (1)$
$c = 2$ $J / g^{o} C$
we get value of c
Hence for $10 k g$ through $2^{o} C$ ,
$W = (10000) (2) (2) = 40000 J$