<Table> K (T) for N 2 + 3 H 2 ⇌ 2 NH 3 <Tr> <Th> Temperature (° C) </Th> <Th> K </Th> </Tr> <Tr> <Td> 300 </Td> <Td> 4.34 × 10 </Td> </Tr> <Tr> <Td> 400 </Td> <Td> 1.64 × 10 </Td> </Tr> <Tr> <Td> 450 </Td> <Td> 4.51 × 10 </Td> </Tr> <Tr> <Td> 500 </Td> <Td> 1.45 × 10 </Td> </Tr> <Tr> <Td> 550 </Td> <Td> 5.38 × 10 </Td> </Tr> <Tr> <Td> 600 </Td> <Td> 2.25 × 10 </Td> </Tr> </Table> <Tr> <Th> Temperature (° C) </Th> <Th> K </Th> </Tr> <Tr> <Td> 300 </Td> <Td> 4.34 × 10 </Td> </Tr> <Tr> <Td> 400 </Td> <Td> 1.64 × 10 </Td> </Tr>

Why is it difficult to obtain 100 yield of ammonia