Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 3 years ago

is Pb(NO^3)^2(aq)+K^2CrO^4(aq) exothermic reaction or endothermic reaction?

  • This Question is Closed
  1. .Sam.
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Double replacement reaction gives, \[\begin{array}{c} \text{Pb}\left(\text{N}\text{O}_3\right)_2 \\ \end{array} \text{ + } \begin{array}{c} \text{K}_2\text{Cr}\text{O}_4 \\ \end{array} \text{ $\longrightarrow $ } \begin{array}{c} \text{Pb}\text{Cr}\text{O}_4 \\ \end{array} \text{ + } \begin{array}{cc} 2 & \text{K}\text{N}\text{O}_3 \\ \end{array}\] Using ΔH = energy used in bond breaking reactions − energy released in bond making products To find whether the reaction is exothermic or endothermic. -ΔH gives exothermic reaction, heat is released from the system. +ΔH gives endothermic reaction beacause heat is being added to break the bonds.

  2. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy