मराठी

Which among the following equations represents the first law of thermodynamics under isobaric conditions? -

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प्रश्न

Which among the following equations represents the first law of thermodynamics under isobaric conditions?

पर्याय

  • ΔU = qp − Pex. ΔV

  • qv = ΔU

  • ΔU = W

  • W = −q

MCQ

उत्तर

ΔU = qp − Pex. ΔV

Explanation:

ΔU = q + W

According to the first law of thermodynamics

= q + (−Pex·ΔV) ....(∵ W = −Pex.ΔV)

ΔU = qp − Pex. ΔV

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First Law of Thermodynamics
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