Related Questions

The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is
A $${\left( {\frac{{\partial {\text{T}}}}{{\partial {\text{V}}}}} \right)_{\text{S}}} = - {\left( {\frac{{\partial {\text{P}}}}{{\partial {\text{S}}}}} \right)_{\text{V}}}$$
B $${\left( {\frac{{\partial {\text{S}}}}{{\partial {\text{P}}}}} \right)_{\text{T}}} = - {\left( {\frac{{\partial {\text{V}}}}{{\partial {\text{T}}}}} \right)_{\text{P}}}$$
C $${\left( {\frac{{\partial {\text{V}}}}{{\partial {\text{S}}}}} \right)_{\text{P}}} = {\left( {\frac{{\partial {\text{T}}}}{{\partial {\text{P}}}}} \right)_{\text{S}}}$$
D $${\left( {\frac{{\partial {\text{S}}}}{{\partial {\text{V}}}}} \right)_{\text{T}}} = {\left( {\frac{{\partial {\text{P}}}}{{\partial {\text{T}}}}} \right)_{\text{V}}}$$
Gibbs free energy (F) is defined as
A F = E - TS
B F = H - TS
C F = H + TS
D F = E + TS
Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)
A A
B N
C A+N
D A-N
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in
A Raman spectra
B Absorption spectra
C Emission spectra
D Fluorescence
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to
A $${\text{A}}$$
B $$\frac{{\text{A}}}{2}$$
C $$\frac{{\text{A}}}{{\sqrt 2 }}$$
D $${\text{A}}\sqrt 2 $$
The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are
A Always irreversible
B Insensitive to temperature changes
C Mostly irreversible
D Highly temperature sensitive
Which of the following property defines the alignment of Ruby text as defined by a tag, in relation to base text defined by a tag?
A ruby-align
B ruby-text
C ruby
D none of the mentioned
Free float for any activity is defined as the difference between
A its earliest finish time and earliest start time for its successor activity
B its latest start time and earliest start time
C its latest finish time and earliest start time for its successor activity
D its earliest finish time and latest start time for its successor activity
Energy may be defined as
A Power of doing work
B Capacity of doing work
C Rate of doing work
D All the above

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