For a particular reaction, Δ=−111.4 kJ and Δ=−25.0 J/K. Calculate Δ for this reaction at 298 K.
Δ= ?

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.