Thermodynamics ...

The favourable conditions for a spontaneous reaction are:

Which of the following conditions make the process non spontaneous at all temperatures. 

Two samples of DNA, A and B have melting points $$340K$$ and $$350K$$ respectively. This is because

Which of the following statements/relationships is not correct in thermodynamic changes?

For a spontaneous reaction, the $$\Delta G$$, equilibrium constant, $$K$$ and will be respectively:

Assuming that water vapour is an ideal gas, the internal energy change ($$\Delta U$$) when $$1mol$$ of water is vaporised at $$1$$ bar pressure and $${100}^{o}C$$ will be:

$$\Delta {G}^{o}$$ of $${Cu}_{(aq)}^{+}$$ and $${Cu}_{(aq)}^{2+}$$ respectively are $$+50$$ and $$+66kJ/mole$$. Value of ($$\Delta{H}^{o}-T\Delta {S}^{o}$$) for $${Cu}_{(aq)}^{+}\rightarrow {Cu}_{(aq)}^{2+}$$ in kilo joules is?

For a gaseous reaction,
$$A(g)+3B(g)\rightarrow 3C(g)+3D(g)$$

$$\Delta{S}_{surroundings}=+959.1J{K}^{-1}{mol}^{-1}$$
$$\Delta{S}_{system}=-163.1J{K}^{-1}{mol}^{-1}$$. Then process is?

For the spontaneous process $$2F(g)\rightarrow {F}_{2}(g)$$, the sign of $$\Delta H$$ and $$\Delta S$$ respectively are?