Answer:
A large quantity
Explanation:
A large quantity will take much longer to melt compared to a small quantity of the same matter.
The rate of melt of a substance is particularly a function of the nature of the substance and the amount of energy supplied to it.
If we assume that we are dealing with different quantities of the same substance, then the one that has more mass will melt faster because less energy would be required to change its state.
A large quantity of matter will take more time to melt.
Answer:oxygen
Explanation:
The radioisotope is an unstable chemical element. The half-life of the radioisotope after decaying for 48 hours is 12 hours.
Half-life is a period taken by the radioisotope to get decayed by half the original amount. The half-life is the time that is needed by the reactant to get decreased and form the product.
If the sample remained is 1/16 then there are 4 half-life periods present.
4 half life = 48 hours ÷ 4
= 12 hours
Therefore, 12 hours is the half-life period.
Learn more about half-life here:
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Answer:
The pressure equilibrium constant (Kp) = (P O₂)³/(P CO₂)²(P H₂O)⁴.
Explanation:
2CO₂ (g) + 4H₂O (g) → 2CH₃OH (l) + 3O₂ (g).
The pressure equilibrium constant (Kp) = the product of the pressure of the products side components / the product of the pressure of the reactantss side components.
each one is raised to a power equal to its coefficient.
∴ The pressure equilibrium constant (Kp) = (P O₂)³/(P CO₂)²(P H₂O)⁴.