A sample of D-ribose(C5H10O5) with mass 0. 727 g was weighed into a calorimeter and then ignited in presence of excess oxygen. The temperature rose by 0.910 K when the sample was combusted. In another separated experiment in the same calorimeter the combustion of 0. 825 g of benzoic acid,for which the ΔcUΘm= 3251 kJ·mol-1,gave a temperature rise of 1.940 K. Calculate the ΔrUΘmand ΔrHΘmof D-ribose combusted.
A.45W·m‐1·K‐1,15W·m‐1·K‐1,0.6W·m‐1·K‐1和0.026W·m‐1·K‐1
B.0.6W·m‐1·K‐1,0.026W·m‐1·K‐1,45W·m‐1·K‐1和15W·m‐1·K‐1
C.0.026W·m‐1·K‐1,0.6W·m‐1·K‐1,15W·m‐1·K‐1和45W·m‐1·K‐1
D.15W·m‐1·K‐1,45W·m‐1·K‐1,0.6W·m‐1·K‐1和0.026W·m‐1·K‐1
A.小于0.6 W/(m·K)
B.等于0.6 W/(m·K)
C.大于0.6 W/(m·K)
D.小于0.4 W/(m·K)