Comment on spontaneity of reactions for which `DeltaH` is positive and `DeltaS` is negative.

For which of the following reaction DeltaS is negative?

Comment on the reactions of hydrogen with chlorine

If for a reaction, DeltaH is negative and DeltaS is positive then the reaction is

In which of the following reactions, Delta H is greater than Delta U ?

Obtain the relationship between DeltaH and DeltaU for gas phase reactions.

Name the following: Antibiotics obtianed form various strains of gram positive and gram negative bateria.

Derive relation between DeltaH and DeltaU for chemical reactions.

During which part of the simple harmonic motion velocity is positive but the displacement is negative , and vice versa ?

Antibiotics used against various strains of gram positive and gram negative bacteria.