The energy of the products is higher than the energy of the reactants in the exothermic reaction
2 answers:
Answer:
B. False
Explanation:
In an exothermic reaction, the average enthalpy change is a negative value ( loss in energy ).
since enthalpy change of reaction is given by:
❎ when enthalpy energy of products is higher than that of reactants, ∆H will be positive ( endothermic reaction ).
✔ When enthalpy energy of products is lower than that of reactants, ∆H will be negative ( exothermic reaction ).
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Answer:
a. all tall
Explanation:
If genotypically one of the parents is homozygous dominant and another one is heterozygous for plant height then phenotypically all their progeny will be tall.
Let us suppose, 'T' represents dominant allele and 't' represents recessive allele. Then the genotype of one parent who is homozygous dominant will be TT and genotype of another parent who is heterozygous will be Tt.
The cross is depicted in the attachment.
Here it may also be noted that genotypically two of the progeny will be homozygous dominant while two of the progeny will be heterozygous but phenotypically all the progeny will be 'tall'.
