help me please!!

Gas Laws: Explosions are rapid expansions of gases, they generally occur when a rapid chemical reaction produces one or more gases as a product, however there are reactions that do not produce gases and can still be explosive, such is the case of the cupric thermite shown in the video 6, very pure and highly ground reagents were used in it to favor a release of energy in the form of very high heat in a short time, considering this, explain how an explosion is possible without the reaction producing gases: cupric magnalium termite Copper Oxide (CuO) 75% Magnalium (Mg/Al) 25% Unadjusted reactions: Mg + CuO - Cu(l) + MgO(s) Al + CuO - Cu(1) + A1203 (s) *Note that none of the products is gaseous. - **Note the intense release of heat to the surrounding environment