### Explain initial concentration of y at constant temperature

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Problem- A reaction is second order in X and zero order in Y. Doubling the initial concentration of X and having the initial concentration of Y at constant temperature causes the initial rate to:

(1) increase by a factor of 4.

(2) decrease by a factor of 2.

(3) remain unchanged.

(4) increase by a factor of 2.

(5) be undeterminable without the balanced equation.

I need help for above question. Show each steps for the above problem.

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