General
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Physics

The escape velocity from the earth is about  11kms-1. The escape velocity from a planet having twice the radius and the same mean density as the earth is ... kms -1

PhysicsGeneral

  1. 22
  2. 15.5
  3. 5.5
  4. 11

    Answer:The correct answer is: 22

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    From Ellingham diagram the correct statements
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    c) 2 Z n plus O subscript 2 end subscript rightwards arrow 2 Z n O

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    III) In the second reaction, (formation of CO) , there is increase in entropy & capital delta S to the power of 0 end exponent=+ve&blank capital delta G to the power of 0 end exponent becomes more –ve with increase in temperature
    IV) In third reaction (formation of CO2 from CO), there is a decrease in entropy capital delta S to the power of 0 end exponent=-ve & capital delta G to the power of 0 end exponent becomes less –ve with increase in temperature

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    II) In the first reaction (Formation of CO2 from ‘C’) capital delta S to the power of 0 end exponent=0 & capital delta G to the power of 0 end exponentremains nearly same, i.e it is independent of temperature
    III) In the second reaction, (formation of CO) , there is increase in entropy & capital delta S to the power of 0 end exponent=+ve&blank capital delta G to the power of 0 end exponent becomes more –ve with increase in temperature
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    Error converting from MathML to accessible text.

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    Error converting from MathML to accessible text.