Question

In a heat exchnager vegetable cooking oil at 35 degree celsius and super 2 points
heated steam at 150 degree celsius are exchnaging heat. The specific heat
of vegetable cooking oil is 1.67 kJ/kg Kand specific heat of super heated
steam is 2.73881 kJ/kg K. During the heat exchnage whose temperature
change will be higher?​

Answer 1

Answer:

ANSWER

Given , m=400g,θ

1

=100

0

C,θ

2

=? , specific heat of vegetable oil c=1.98J/g−

o

C,Q=47376J

Now , by the definition of specific heat c ,

Q=mcΔθ=mc(θ

1

−θ

2

)

or 47376=400×1.98(100−θ

2

)

or (100−θ

2

)=47376/(400×1.98)=59.8

or θ

2

=100−59.8=40.2

o

C

Answered By

toppr

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