.thermal-equilibrium-formula{width:178px; height:32px ;}
.thermal-equilibrium-problem{width:180px; height:72px ;}
.thermal-equilibrium-problem2{width:128px; height:88px ;}
.thermal-equilibrium-problem3{width:190px; height:245px ;}
.thermal-equilibrium-formula2{width:200px; height:52px ;}
.thermal-equilibrium-problem4{width:176px; height:264px ;}
.calorimeter{width:169px; height:205px ;}
.calorimeter-problem{width:179px; height:234px ;}