(kJ/mol)
T (K)	LaH₂	CeH₂	PrH₂	NdH₂	SmH₂
213.15	−140.762	−129.731	−8.761	−10.594	26.152
223.15	−141.281	−130.216	−10.262	−11.128	25.598
233.15	−141.793	−130.696	−11.758	−11.656	25.051
243.15	−142.301	−131.182	−13.255	−12.186	24.503
253.15	−142.814	−131.666	−14.754	−12.715	23.953
263.15	−143.315	−132.145	−16.243	−13.237	23.415
273.15	−143.821	−132.626	−17.738	−13.761	22.871
283.15	−144.323	−133.110	−19.230	−14.288	22.325
303.15	−145.317	−134.068	−21.204	−15.331	21.251
313.15	−145.813	−134.547	−22.690	−15.852	20.714
323.15	−146.302	−135.024	−24.174	−16.367	20.179
333.15	−146.795	−135.499	−25.659	−16.888	19.648
343.15	−147.280	−135.981	−27.138	−17.403	19.114
353.15	−147.762	−136.453	−28.615	−17.916	18.588
363.15	−148.245	−136.928	−30.097	−18.431	18.061
373.15	−148.728	−137.404	−31.574	−18.944	17.532