J & K CET Engineering J and K - CET Engineering Solved Paper-2006

  • question_answer
    When the temperature increases, the viscosity of

    A)  gas decreases and liquid increases

    B)  gas increases and liquid decreases

    C)  gas and liquid increases

    D)  gas and liquid decreases

    Correct Answer: B

    Solution :

    Viscosity in gases arises principally from the molecular diffusion that transports momentum between layers of flow. For gases viscosity increases as temperature increases, while in liquids the additional force between molecules become important, hence viscosity tends to fall as temperature increases.


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