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While dealing with thermochemical reacti...

While dealing with thermochemical reactions, the temperature and pressure of a reactant must be…………as those of products.

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What are the types of chemical reactions in accordance with the nature and the nuber of the reactants and the products?

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Knowledge Check

  • After a chemical reaction the total mass of reactant and products

    A
    always increases
    B
    always decreases
    C
    does not change
    D
    either increases or decreases

  • In which of the followng chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature ?

    A
    `2H_(2)(l)+O_(2)(l)to2H_(2)O(g)`
    B
    `2H_(2)(g)+O_(2)(l)to2H_(2)O(l)`
    C
    `2H_(2)(g)+O_(2)(g)to2H_(2)O(l)`
    D
    `2H_(2)(g)+O_(2)(g)to2H_(2)O(g)`

  • While dealing with poverty-stricken students, schools must

    A
    provide them with appropriate training to develop skills so as to develop self-esteem
    B
    have zero tolerance for excuses for not attending school regularly
    C
    attach greater Importance to curricular activity by segregating them for better attention
    D
    expect them to possess a high standard of behaviour

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    In an exothermic reaction, the total enthalpy of reactant is ………….then that of products.

    In exothermic reactions, the energy of products is more than the energy of reactants.

    In a gaseous reaction, an increase in the pressure of the reactant gases increases the rate of reaction.

    In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?

    In which of the following chemical equations the abbreviations represent the correct states of the reactants and products at reaction temperature?

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