When sodium dioxonitrate (III) (NaNO2) dissolves in water H is positive, the process of dissolution is

April 6, 2026Geography

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April 6, 2026

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A positive value for the enthalpy change ( $\Delta H$ ) indicates that the reac

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65. When sodium dioxonitrate (III) ( $\text{NaNO}_2$ ) dissolves in water $\Delta H$ is positive, the process of dissolution is

A positive value for the enthalpy change ( $\Delta H$ ) indicates that the reaction absorbs heat from its surroundings. This type of reaction is defined as endothermic.
The correct option is (b) endothermic.

66. The energy change ( $\Delta H$ ) for the reaction $\text{CO}_{(g)} + \frac{1}{2}O_{2(g)} \rightarrow CO_{2(g)}$ is

We use Hess's Law, which states that the enthalpy change of a reaction

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65. When sodium dioxonitrate (III) (NaNO_2) dissolves in water H is positive, the process of dissolution is A positive value for the enthalpy change ( H) indicates that the reaction absorbs heat from its surroundings.

Asked on April 6, 2026Geography

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Here are the solutions to the questions: 65. When sodium dioxonitrate (III) (NaNO_2) dissolves in water H is positive, the process of dissolution is A positive value for the enthalpy change ( H) indicates that the reaction absorbs heat from its surroundings. This type of reaction is defined as endothermic*. The correct option is (b) endothermic*. 66. The energy change ( H) for the reaction CO_(g) + (1)/(2)O_2(g) → CO_2(g) is We use Hess's Law, which states that the enthalpy change of a reaction